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Acc.valve 2-3 4T65E

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Accumulator valve 2-3 4T65E

  • Valve
  • Sleeve

Fits GM units only.

To help control the 3rd clutch apply pressure and shift feel, a 2-3 accumulator piston and an accumulator valve and sleeve that regulate fluid pressure are used. The 2-3 accumulator valve and sleeve regulate line pressure using torque signal influence and direct 2-3 accumulator pressure to the spring side of the piston, controlling the 3rd clutch apply. Wear at the sleeve or valve can allow torque signal, 2-3 accumulator or line pressures to exhaust, resulting in various 2-3 shift complaints. Some early OE valves were not anodized, and are prone to significant wear and scratching.


2-3 Shift concerns
Low line rise


Wear of the 2-3 accumulator valve and/or sleeve allow loss of torque signal, 2-3 accumulator and/or line pressure.


Install the Sonnax valve and sleeve kit that has upgraded materials, restores correct hydraulic clearances and is designed to prevent wear.

NOTE: For 4T65-E units installed in Volvo vehicles, use 2-3 accumulator valve kit 84754-64K.

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GM General Motors

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